I recently installed an Engel MT45 in my 1999 Tacoma extra-cab. It's behind the driver's seat on a 12x24 inch piece of Oak, held in place by 4 turnbuckles (2 attached to the seat belt points, 2 to a piece of aluminum that I bolted to the floor) all secured to the handles. It's in there nice and tight.
My problem is when I hit bumps, it will make a loud deep knocking sound (CLUNK!). I orginally thought the sound was near the motor, and that maybe it was the shock mounting feature.
I took the fridge inside last night and took the metal case off the motor side. There are about 12 screws holding it together. After that, I noticed the box where the power cord plugs in (and where the fuse is located) was able to swing back and forth freely, causing it to bang on both sides. I took the 4 screws holding the black grate (I think cooling fluid cycles through this cage) off, and pushed it in tighter, and screwed it back together. The power box no longer moves freely (maybe I'm missing a part that holds it in place?), and I put the metal case back on the fridge.
I drove to work and back today, and the sound is still there. It seems that the fridge is in two pieces: 1) the metal case and 2) the fridge box (roughly), and they do not always move together. The turnbuckles hold the metal case securely, but the fridge "interior" (not the basket.. this was out) bounces over bumps.
Do you think this problem has something to do with the way I mounted it in the truck, or is this just the way Engels work? Any experiences out there would be greatly appreciated! Thanks in advance